The LaTeX Project showcases a collection of Well Tagged PDF documents conforming to PDF/UA-2, including examples of math equations, arXiv papers, course notes, and conference papers. The files were generated using LuaLaTeX. While there are limited validators for UA-2 compliance, viewers that modify PDFs may break the standard. Examples include MathML-associated files for tagging mathematics, enhanced LaTeX packages for mathematical markup, and tagged documents of Niels Bohr’s essays, Shakespeare’s “MACBETH,” and the American Standard Version Bible. The content also features a conference paper on enhancing LaTeX for accessible PDFs and sample Chemistry/Math notes using LaTeX source files.
https://github.com/latex3/tagging-project/discussions/72